How do animals become endangered?

The endangerment of animal species weighs heavily on the minds of concerned citizens, as the number of endangered plants and animals continues to rise. Directly or indirectly, humans are usually to...
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How many animals are endangered in the USA?

The list of endangered and threatened species in the United States is updated every day by the U.S. Fish and Wildlife Service and currently includes 1,220 species of fish, birds, mammals, amphibian...
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